Personal watercraft

Abstract

A personal watercraft is disclosed. The personal watercraft typically includes a body formed by a hull and a deck covering the hull from above and having an inner space defined by the hull and the deck, an engine accommodated in the inner space of the body, and an exhaust pipe accommodated in the inner space and configured to guide an exhaust gas emitted from the engine outside the body. The body is typically provided with a penetrating hole through which an inside of the body and an outside of the body communicate with each other. The exhaust pipe is typically configured to extend through the penetrating hole and mounted to the body by a mounting device in the vicinity of the penetrating hole, and the mounting device is removably mounted to the body from outside the body.

1. A personal watercraft comprising:
 a body formed by a hull and a deck covering the hull from above and having an inner space defined by the hull and the deck; 
 an engine accommodated in the inner space of the body; and 
 an exhaust pipe accommodated in the inner space and configured to guide an exhaust gas emitted from the engine outside the body, wherein the body is provided with a penetrating hole through which an inside of the body and an outside of the body communicate with each other, the exhaust pipe being configured to extend through the penetration hole and to be mounted to the body by a mounting device in the vicinity of the penetrating hole, the mounting device being removably mounted to the body from outside the body. 
 wherein the exhaust pipe has an outer diameter smaller than a diameter of the penetrating hole, and the mounting device is comprised of a flexible seal member configured to seal a clearance formed between the penetrating hole and the exhaust pipe; 
 wherein the exhaust pipe is configured to have a portion protruding from the penetrating hole outside the body; 
 wherein the mounting device includes a tubular portion configured to extend outward from an outer wall of the body, the exhaust pipe extending through the tubular portion, and a flange portion extending radially outward from the tubular portion along the outer wall of the body in the vicinity of the penetrating hole; and 
 wherein the exhaust pipe is configured to be mounted to the body so as to seal the clearance between the penetrating hole and the exhaust pipe in such a manner that the flange portion of the mounting device is fastened to the body by a bolt from outside the body so as to be tightly fitted to the outer wall of the body, and the tubular portion of the mounting device is fastened to an outer peripheral portion of the protruding portion of the exhaust pipe by a clamping member with a clamping force applied radially inward. 
 
     
     
       2. The personal watercraft according to  claim 1 , wherein a cap is provided on the outer wall of the body to cover the protruding portion of the exhaust pipe, and is fastened to the body with the flange portion of the mounting device provided between the body and the cap. 
     
     
       3. A personal watercraft comprising:
 a body formed by a hull and a deck covering the hull from above and having an inner space defined by the hull and the deck; 
 an engine accommodated in the inner space of the body; and 
 an exhaust pipe accommodated in the inner space and configured to guide an exhaust gas emitted from the engine outside the body, wherein the body is provided with a penetrating hole through which an inside of the body and an outside of the body communicate with each other, the exhaust pipe being configured to extend through the penetrating hole and to be mounted to the body by a mounting device in the vicinity of the penetrating hole, the mounting device being removably mounted to the body from outside the body. 
 wherein the exhaust nine has an outer diameter smaller than a diameter of the penetrating hole, and the mounting device is comprised of a flexible seal member configured to seal a clearance formed between the penetrating hole and the exhaust pipe; 
 wherein the exhaust pipe is configured to have a portion protruding from the penetrating hole outside the body and to be provided with a male threaded portion on an outer peripheral portion of the protruding portion; 
 wherein the mounting device includes a tubular portion located within the penetrating hole and a flange portion extending radially outward from the tubular portion; 
 wherein the exhaust pipe extends through an inside of the tubular portion; and 
 wherein the exhaust pipe is configured to be mounted to the body so as to seal a clearance between the penetrating hole and the exhaust pipe in such a manner that the flange portion of the mounting device is fastened to the body by a bolt from outside the body so as to be tightly fitted to an outer wall of the body, and wherein a nut having a female threaded portion mountable to the male threaded portion of the exhaust pipe is fastened to the exhaust pipe. 
 
     
     
       4. The personal watercraft according to  claim 3 , wherein a cap is provided on the outer wall portion of the body to cover the protruding portion of the exhaust pipe, and is fastened to the body with the flange portion of the mounting device provided between the body and the cap.